Container for dry-ice packs



June 17, 1930. w FOUNTAIN 1,765,226

CONTAINER. FOR DRY ICE PACKS Filed April 25. 1928 Patented June 17, 1930" PATENT OFFICE LEVI w. FOUNTAIN, on PHILADELPHIA, PENNSYLVANIA, AssreNbn TO STRAWBRIDGE: & GLOTHIER, or PHILADELPHIA, PF/NNSYIJVANIAW/A CORPQRATION or PENNSYL- VANIA' CONTAINER non l 9 Application filed April 25,

' This invention relates to improvements in varying amounts of dry iceas required to maintain the'desired low temperature with- 10 in the container for different periods of time.

i the accumulating gas to escape to the at- The invention also resides in certain novel and improving structural features hereinafter set forth and'illustrated in the attached drawings in-whichz' Figure 1 is a view in perspective show-. ing detached the three main elements of which the container is composed;

Fig. 2 is a view in perspectiveof the assembled container in its smallest dimensions, and p Fig. 3 is a view of the assembled container adjusted to increase the interior capacity.

With reference to the drawings, the container in a preferred form comprises two end elements 1 and 2,-see Fig. 1, each of which is open at one end only for reception of a tubular intermediate member 3, this intermediate member being adapted for insertion in the open ends of the end members 1 and 2 to form a complete container, as shown in Figs.- 2 and 3. Preferably, both the members 1 and 2 and the member 3 are made of cellular cardboard or vsimilar material having spaced 'walls between which air spaces or channels" are formed through which the vapor from the dry ice may cirdulate. The cellular formation is well illustrated'in Fig.-,-1, the cells 4 being open at the corners or ed es of the member and the open corners orming channels through which the vaporized dry ice may circulate from end to end of the container and through which the vapor finds free access to all of the cells 4. Also, as shown in Figs. 2 and 3', the closed outer ends of the members 1 and 2 are perforated, as indicated at 5, to permit mosphere. The end sections 1 and 2, are in the present instance coveredwith paper to give thecontainer a finished appearance.

DRY-ICE PACKS 1928. Serial No. 272,734.

In using this container, ice cream or other material is placed in the interior of the member 3, and the unoccupied ends thereof then packed with the dry ice. The end elements 1 and 2 are then placed over the ends of the member 3 to form the container shown in Fig. 2, the member 3 being of such length that the edges of the telescoping end sections 1 and 2 meet at the mid section of the package required for maintaining the temperatures In the event that more of the dry iceis .over a predetermined period of time than can be held in those portions of the member 3 not occupied by the refrigerated'material, the dry ice may project beyond the ends of the member 3 and into the end elements 1' and 2, which are telescoped over the ends of the member 3 to the extent permitted as shown in Fig. 3. In. this instance, if desired, a wrapping. sheet may be placed around the intermediate section to cover the exposed portion of the inner member 3; or

one or more sleeves 6, see broken lines in cient for dry-ice pack purposes, the vapor from the ice filling the cells in th'e inner member and thereby insuring a proper maintenance of. the desired low temperatures. The adjustable feature is also of importance as affording a single container of standardized'parts, the capacity of which may be varied to meet the many different requirements. This eliminates the necessity for a relatively large number of different sized containers and simplifies the handling and forming of the packs.

The container as herein set forth may be modified without departure from the invention as defined in the appended claims.

I claim:

' 1. A container for dry-ice packs comprising an inner container, closures for said container adapted to telescope with the latter and being adjustable by reason of said telescopingrelation to vary the carrying capacity of the container and means embracing the inner container for closing the space between the ends of said closures. 2. A container for dry-ice packs comprising an inner tubular member, outer members adapted to be inserted over the ends of said inner member and to close ,the package, and a sleeve fitting the inner member and fidapted to lie between the said outer memers.

3. A container for dry-ice packs comprising an inner member having cellular Walls the cells of which extend circumferentially and in the outer surface longitudinal channels communicating with said cells, and outer portions telescoping with and closing said inner member.

LEVI FOUNTAIN. 

